Controls and Indicators
Applying Power to the HP Server
Powering Up the Server
1. Turn on power to the monitor connected to the HP server.
Turning on the monitor first ensures that video output auto-configures properly as the
server boots up.
2. Press the power switch on the front control panel.
When you press the power switch, the server powers up and loads the operating system.
The system runs a set of power-on self tests (POST) during this process. For details refer
to Chapter 4, “Troubleshooting.”
Powering Down the Server
1. Log off all users and, if necessary, back up files.
— Schedule the power down for a time when the server being down will affect the
fewest users.
— If you will be performing a hardware or software upgrade, be sure the server's data
has been backed up.
— Follow instructions in your network operating system (NOS) documentation to shut
down all networking software and applications.
WARNING: The power supply will continue to provide standby current to the HP server
until the power cable is disconnected from the rear panel.
2. Press the power switch on the HP server's control panel when prompted by the operating
system.
Normally this completes the power-down procedure.
Connecting Power to Multiple-Server Configurations
The HP server temporarily draws a large “inrush current” when first connected to an AC
power source. The inrush current is much greater than the server's normal operating current
and generally, the AC power source can handle the normal inrush current.
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HP ProLiant ML150 Server Operations and Maintenance Guide
HP CONFIDENTIAL
Codename: Stone Soup Part Number: 343329-001 Last Saved On: 8/14/03 10:01 AM
